Method and apparatus for optimizing measurement in a wireless communication system

Abstract

A method and apparatus are disclosed for optimizing measurement in a wireless communication network. In one embodiment, the method is implemented in a UE. The method includes configuring the UE with a threshold of serving cell quality. The method further includes determining, at the UE, whether to apply the threshold of serving cell quality depending

What is claimed is: 
     
         1 . A method implemented in a UE (User Equipment) for optimizing measurement, comprising:
 configuring the UE with a threshold of serving cell quality;   determining, at the UE, whether to apply the threshold of serving cell quality depending on speed of the UE.   
     
     
         2 . The method of  claim 1 , wherein the threshold of serving cell quality is used to control whether or not the UE is required to perform measurement of neighbor cells. 
     
     
         3 . The method of  claim 2 , wherein the UE performs the measurement of neighbor cells when the serving cell quality is worse than the threshold. 
     
     
         4 . The method of  claim 2 , wherein the UE is allowed to skip the measurement of neighbor cells when the serving cell quality is better than the threshold. 
     
     
         5 . The method of  claim 2 , wherein the measurement of neighbor cells is intra-frequency measurement, inter-frequency measurement, or inter-RAT (Radio Access Technology) measurement. 
     
     
         6 . The method of  claim 2 , wherein the measurement of neighbor cells is on a frequency where small cells are deployed or a frequency configured by the network. 
     
     
         7 . The method of  claim 6 , wherein for frequency not configured by the network, the UE applies the threshold of serving cell quality regardless of the UE speed. 
     
     
         8 . The method of  claim 1 , wherein the UE applies the threshold of serving cell quality if the UE is moving in high speed. 
     
     
         9 . The method of  claim 1 , wherein the UE ignores or does not apply the threshold of serving cell quality if the UE is not moving or is moving in slow speed. 
     
     
         10 . A UE (User Equipment) in a wireless communications system for optimizing measurement, the UE comprising:
 a control circuit for realizing functions of the communications device;   a central processing unit coupled to the control circuit for executing a program code to operate the control circuit; and   a memory coupled to the central processing unit for storing the program code;   wherein the program code comprises:
 configuring the UE with a threshold of serving cell quality; 
 determining, at the UE, whether to apply the threshold of serving cell quality depending on speed of the UE. 
   
     
     
         11 . The UE of  claim 10 , wherein the threshold of serving cell quality is used to control whether or not the UE is required to perform measurement of neighbor cells. 
     
     
         12 . The UE of  claim 11 , wherein the UE performs the measurement of neighbor cells when the serving cell quality is worse than the threshold. 
     
     
         13 . The UE of  claim 11 , wherein the UE is allowed to skip the measurement of neighbor cells when the serving cell quality is better than the threshold. 
     
     
         14 . The UE of  claim 11 , wherein the measurement of neighbor cells is intra-frequency measurement, inter-frequency measurement, or inter-RAT (Radio Access Technology) measurement. 
     
     
         15 . The UE of  claim 11 , wherein the measurement of neighbor cells is on a frequency where small cells are deployed or a frequency configured by the network. 
     
     
         16 . The UE of  claim 15 , wherein for frequency not configured by the network, the UE applies the threshold of serving cell quality regardless of the UE speed. 
     
     
         17 . The UE of  claim 10 , wherein the UE applies the threshold of serving cell quality if the UE is moving in high speed. 
     
     
         18 . The UE of  claim 10 , wherein the UE ignores or does not apply the threshold of serving cell quality if the UE is not moving or is moving in slow speed.